Schwarzkopf Professional BLONDME 7 Precision Lightener 350 gA versatile coloring and care system with integrated Dual Bond technology allows you to tackle any blonde challenge and create the most stunning blonde styles. The integrated Dual Bond technology in all BLONDME dyes helps to limit damage at all levels. It protects bonds during chemical processes and helps create new bonds as part of special care in the salon and at home. The dual bond system brings maximum certainty when coloring and lightening.